I'm certain this has been asked on this forum. I did a quick search and didn't find anything quickly. I also googled the subject and found answers. I'd just like to double check.
My M&P has 5.56 stamped on the barrel. I can't find any "self defense" type of 5.56mm but I can find load of it in .223 .. I read that 5.56 guns can fire both 5.56 and .223 and that .223 gun should only fire .223 ..
I know I'll likely never need defense ammo for my AR, just like I'll likely never need JHP's for my pistols either. But it's comforting to have. I know 5.56/.223 isn't ask effect as 7.62's/.308's, but I figure with the best defense ammo, it'll be enough.
I hear this is the best in .223, Ok to use in my 5.56 AR?
Any other options?